Structural cellular materials

B - Operations – Transporting – 31 – D

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B31D 3/02 (2006.01) E04C 2/36 (2006.01)

Patent

CA 1093364

51628(U) ABSTRACT OF THE DISCLOSURE Structural honeycomb material is expanded to open hexagonally cellular state, by pulling it out in the expan? direction. It is then compressed across the expansion dir ? tion and fed through a throat where it undergoes further compression which creases the constituent material. On being allowed to re-expand, the material adopts a stable open-cellular state. The feeding of the material through the throat is accomplished by driving means which engages the material across the expansion direction. This is an improvement on feeding it between driving rollers having rotational axes parallel with the major axes of the cells. Satisfactory compression in the throat is more easily obtained, especially with small cell-sizes. SPECIFICATION OF THE INVENTION

317244

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